Home / 135,433.25-186,835.86-87,701.97

Finding the Fourth Proportional to 135,433.25, 186,835.86 and 87,701.97

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Solution

The fourth proportional to 135,433.25, 186,835.86 and 87,701.97 is: 120,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,433.25 : 186,835.86 = 87,701.97 : x
  2. Step 2: Convert to fraction form
    135,433.25/186,835.86 = 87,701.97/x
  3. Step 3: Cross multiply
    135,433.25x = 186,835.86 × 87,701.97
  4. Step 4: Simplify right side
    135,433.25x = 16,385,873,689.28
  5. Step 5: Solve for x
    x = 16,385,873,689.28/135,433.25
  6. Step 6: Final answer
    x = 120,988.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.